ELECTRONIC SHIFT LEVER SYSTEM TERMINALS OF ECU


  1. TRANSMISSION CONTROL ECU INSPECTION

    A01MFVNE21

    Tech Tips

    Inspect the connectors from the back while the connector is connected.

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A25-1 (MWA) - A26-6 (E01) W - W-B Parking lock motor READY OFF, power switch on (IG) 9 to 14 V
    A25-2 (MVA) - A26-6 (E01) L - W-B Parking lock motor READY OFF, power switch on (IG) 9 to 14 V
    A25-5 (MUA) - A26-6 (E01) G - W-B Parking lock motor READY OFF, power switch on (IG) 9 to 14 V
    A25-7 (VC) - A25-19 (E2) V - P Power source (Rotation angle sensor) READY OFF, power switch on (IG) 4.5 to 5.5 V
    A25-8 (RB) - A25-19 (E2) Y - P Rotation angle sensor signal Power switch off → Power switch on (IG) 0 to 1.5 V ←→ 4 to 5.5 V

    Power switch on (IG)

    Changing from park (P) to neutral (N), or neutral (N) to park (P).

    Pulse generation

    (see waveform 1)
    A25-15 (BATT) - A26-1 (E1) P - W-B Power source (RAM) Always 9 to 14 V
    A25-16 (+B) - A26-1 (E1) G - W-B Power source READY OFF, power switch on (IG) 9 to 14 V
    A25-17 (RA) - A25-19 (E2) LG - P Rotation angle sensor signal Power switch off → Power switch on (IG) 0 to 1.5 V ←→ 4 to 5.5 V

    Power switch on (IG)

    Changing from park (P) to neutral (N), or neutral (N) to park (P).

    Pulse generation

    (see waveform 1)
    A25-19 (E2) - Body ground P - Body ground Rotation angle sensor ground Always Below 1 Ω
    A25-20 (IND) - A26-1 (E1) GR - W-B P position switch indicator light Park (P) not selected → park (P) selected [P position switch (integration control and panel assembly) pushed to select park (P)] 9 to 14 V → 0 to 1.5 V
    A25-23 (BMA) - A26-1 (E1) B - W-B P CON relay (transaxle parking lock control relay) READY OFF, power switch on (IG) 9 to 14 V
    A26-1 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A26-5 (E02) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A26-6 (E01) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A26-15 (CA1L) - A26-1 (E1) W - W-B CAN communication Power switch on (IG)

    Pulse generation

    (see waveform 2)
    A26-16 (CA1H) - A26-1 (E1) B - W-B CAN communication Power switch on (IG)

    Pulse generation

    (see waveform 2)
    A26-22 (PCON) - A26-1 (E1) BR - W-B Communication bus READY OFF, power switch on (IG)

    Pulse generation

    (see waveform 3)
    A26-23 (PPOS) - A26-1 (E1) L - W-B Communication bus READY OFF, power switch on (IG)

    Pulse generation

    (see waveform 3)
    A26-24 (LIN) V LIN communication - -

  2. Oscilloscope waveforms

    Tech Tips

    Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.


    1. A01MFTDE02

      Waveform 1 (Rotation angle sensor signal)

      Item Contents
      Terminal

      A25-17 (RA) - A25-19 (E2)

      A25-8 (RB) - A25-19 (E2)
      Equipment setting 2 V/DIV., 100 msec./DIV.
      Condition

      Power switch on (IG)

      Changing from park (P) to neutral (N), or neutral (N) to park (P).

      Tech Tips


      • When changing from park (P) to neutral (N), or neutral (N) to park (P) with the power switch on (IG), a waveform will be generated for up to 0.5 seconds.

      • The waveform shown is for reference only.

    2. A01MHPHE03

      Waveform 2 (CAN communication signal)

      Item Contents
      Terminal

      CH1: A26-16 (CA1H) - A26-1 (E1)

      CH2: A26-15 (CA1L) - A26-1 (E1)
      Equipment setting 1 V/DIV., 50 μs/DIV.
      Condition Power switch on (IG)
    3. A01MIZEE03

      Waveform 3 (Transmission control communication signal)

      Item Contents
      Terminal

      CH1: A26-22 (PCON) - A26-1 (E1)

      CH2: A26-23 (PPOS) - A26-1 (E1)
      Equipment setting 10 V/DIV., 10 ms/DIV.
      Condition READY OFF, power switch on (IG)